Convertible sofa-bed.



PATENTED APR. 17 G. E. HOLMES & A. G. & J. M. BOSTROM.

CONVERTIBLE SOFA BED.

APPLICATION FILED SEPT. 14, 1905.

3 SHEETSSHEET l.

No. 818,089. PATENTED APR. 17, 1906. G. E. HOLMES & A. G. & J. M. BOSTROMM -CONVERTIBLE SOFA BED.

APPLICATION FILED SEPT. 14, 1905.

3 SHEETS-SHEET 2.

No. 818,089. PATENTED APR. 17, 1906. G. B. HOLMES & A. G. & J. M. BOSTROM. CONVERTIBLE SOFA BED.

APPLICATION FILED SEPT. 14, 1905.

' 3 SHEETS-SHEET 3 30 in which like 40 from one GUSTAV E. HOLMES,

AXELG. BOSTROM, AND JOHN M. BOSTROM, OF 'MILWAUKEE, WISCONSIN.

CONVERTIBLE SOFA-BED.

Specification of Letters Patent.

Patented April 17, 1906.

Application filed September 14, 1906. Serial No. 278,368.

1'0 all whom it may concern.-

Be it known that we, GUSTAV E. HoLMEs, AXEL G. BOSTROM, and JOHN M. Bos'rnoi/r, residing in Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented: new and useful. Improvements in Convertible Sofa-Beds, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

This invention relates to improvements in convertible sofabeds or those articles of fur niture which may be readily converted from a sofa to a bed and vice versa, and comprises I 5 the structure and its parts and combinations ofparts, as herein described, and all equivalents.

The sofa-bed of this invention is designed to be rigid and strong in its sofa and bed condi-. 2o tions, while being quickly and easily changed from one condition to the other.

.It comprises mechanical features by which these objects may be attained with an automatic locking of the seat or body portion in e5 either of its positions.

.The invention, notwithstanding the above features, is adapted to resemble an ordinary sofa when in its normal condition.

Referring to the accom anying drawings,

the same parts in the several views, Figure 1 is. a front elevation of a sofa-bed constructed in accordance with this invention shown in itsnormal condition for use as a sofa. Fig. 2 is 5 a similar view thereof with the seat or body ortion inverted and assuming the condition of the device for use as a bed. Fig. 3 is a transverse sectional view of the sofa-bed with the seat or body portion in the act osition to the other. Fig. 4 is a sectional e evation of the head portion of the main frame, showing the locking mechanism for the seat or body portion and the arrangement of cams for swinging the front board. 5 Fig. 5

is a reverse view of the same, part of the u holstering being removed. Fig. 6is an end e evation of the head end of the seat or body portion in its sofa position. Fig. 7is a transverse sectional view of the locking mech- 5o anism for the seat or body portion when in its bed position. Fig. 8is a sectional view of the locking member thereof and its su port. Fig. 9 is a plan view of a ortion of tbe releasing means for the locking device of the of a series of straps 23. characters 0 reference indicate of turning seat or body portion in its sofa osition. Fig.

. 10 is a view similar to Fig). 6, ut looking at I the footend of the seat or dy portion. Fig. 11is a sectional elevation of the foot portion of the main frame, and Fig. 12 is a sectional plan view of the foot end of the sofa-bed with the seat or body portion in its bed position. In the drawings, 15 represents amainframe which is of the usual rectangular box-like formation andis provided with a head portion 16 and a foot portion 17, between which is invertibly mounted a seat or body portion 18. In the normal osition of the seat or body portion 18 it fil s in between the head portion 16 and the foot portion 17 and extends from the front edge of the main frame to the rear edge to comp etc a sofa of the ordinary appearance, as shown in Fig. 1.

The seat or body portion 18 is made up of a rectangular frame 19, which is pivotally mounted at its ends, midway between its sides, to the foot portion 17, and to a transverse partition 20 of the head portion 16 by means of sleeved bolts or pivotal pins 21. This frame is upholstered on its sides and top, and the to constitutes a spring cushioningseat, while in the box-like bottom it contains a mass of bedding 22, held in place by means In its normal or sofa position the seat or body portion 18 has the side members of its frame resting upon the side members of the main frame 15, so that it is rigidly supported against turning on its pivotal connections; but its front side member has its lower portion hinged to its upper portion, so as to be capable of swinging inwardly to disengage from the main frame and permit of such turning movement of the seat or body portion. For convenience this movable portion of frame 19 will be referred to as a movable front board or hinged board 24, though obviously it need not be located in the front of the device, as shown, and such term is not to be understood as a limitation to such position.

In order that the movable front board 24 may be conveniently swung inwardly to enable the seat or body portion to be turned for changing it from the sofa position to the bed position, a foot-lever or treadle 25 is pivotally mounted at 26 on the outside of partition 20 and has a hook 27, pivoted to its upper end with its hook end passing through an opening in said partition where it is adapted to be en- A U-shaped frame 31 is and connected to the swing1 serves to give to said front oard the tend-- gaged by an inclined lug 28 on an upwardlyextending angular arm 29, which is secured to said movable front board. I When the treadle or foot-lever is pressed rearwardly by means of the foot, it swings hook 27 forwardly, and thereby forces' the upper end of arm 29 forwardly through the engagement of lug 28 with said hook, thus swinging the movable front board 24 rearwardly or inwardly on its hinges to the inclined position shown in Fig. 3, so that it will escape the front side of-the main frame'15. The lever'29 moves in a recess of the frame 19 to be out ofthe way, and stops or projections 30 at each end of the frame 19 limit the inward movement of the swinging front board.

ed, in the frame 19 and has the bed-clothing secured thereto, so as to form an extension for the bed when'swung outwardly, as shown in Fig. 2, and this frame being of spring metal 'n front board 24 ency to swing outwardly to its normal ,0- sition. Therefore it is advisable to provlde means for retaining the front board in the inner position to which it has been moved by means of the treadle even after the lug 28 has passed away from the hook 27, so that the movable front board will be sure to clear the main frame. This is accomplished by means of a cam 32, mounted on the inner side of partition 20 just below the o ening through which hook 27 extends and w 'ch is adapted to receive the lug 28 from said hook and hold it in the outward position for a short distance. This cam is rounded at its lower end to force the lug 28 outwardly during the return movement of the seat or body portion and swing the front board 24 inwardly, so it will not strike against the, main frame, and it terminates abruptly at its upper end where it releases the lug 28 and permits'the spring31 to force the board 24 back intoits normal position where it will engage with and rest upon the main frame 15. A somewhat similar cam 33 is located at the other end of partition 20 to likewise swing the front board 24, so that it will not engage the rear side of the main frame duri the turning of the seat or body portion; ut this cam is rounded at both ends to force the lug 28 outwardly when the seat or body portion is moving in either direction. For convenience both of the side boards of the main frame 15 are slightly beveled to aid the front board 24 in clearing them.

As the frame of the seat or body portion rests u on the main frame at its f" rear si es during the normal or sofa of the seat or body portion, there cessity for furtherlooking or 4 a means therefor; but in the bed'm tion ti seat or body portion it is dos le to pIOVYulQ some means for preventing accidental turnrid pivotally .mount- 7 movable front ing thereof. This is here accomplished by a block 34 on-the foot end of the seat or body portion coming into engagement with a similar stop 35 on the foot portion of the main frame, which will stop the swinging movement of the seat or body portion when it reaches the bed position a'nd'willeffectively prevent said seat or body portion from turning farther in that direction. In addltion to this the partition 20 has. a catch-plate 36,

coil-spring 39, located behind the catch-plate 36, presses it outwardly to make such engage ment and-an angular arm 40, extending rearwardly therefrom through a slot in the partition 20, stands in the path of movement of a lug 41 on the foot-lever or treadle 25, so that when said foot-leveror treadle is pressed upon the lug 41 will engage the'arm 40' and force it downwardly, and thereby swing the" catchplate 36 back out of engagement with the groove. The catch-plate 36 is so housed within its opening in the partition 20 that it is incapable of being forced therefrom by either upward or downward pressure that it might be subjected to by the seat or. body portion, and when in engagement with the groove 38 it securely locks the seat or body ortion against turnin Obviously when 1t is desired to release 1; e seat or body portion from the lockin engagement it is only necessary to force t when the lu 41 will retract the catoh-plate 36 and withdraw the rib 37 from enga ement with the groove 38. Thus the tread e 25 is relied upon to release the seat or body ortion from its locking engagements in hot of its positions.

It is obvious that various changes in the construction and arrangement here shown and described may be made without departing from the spirit and scope of theinvention as claimed. 1

What we' claim as our invention is 1. In a sofa-bed having a main frame and seat or body ortion ,pivotally mounted a thereon and a apted to rest on the front and rear of themain frame. in one osition,'a movable front board by which t e engagement is made between the frame of the seat or body'portion and the main frame, and means for moving said front board to release said engagement and permit the seat or body portion to be turned.

In a sofa-bed having a main frame and a seat or bod portion pivotally mounted thereon and adiipted in one position to have ts frame rest upon the main frame, a swingront board on the frame of the seat or portion by which the engagement between the said frame and the main frame is e treadle 25 inwardly made, and means for swinging the front board to permit the seat or body portion to be turned.

3. In a sofa-bed having a main frame and a seat or body portion pivotally mounted thereon, a frame for the seat or body portion having a hinged front board adapted to engage the main frame, and a lever mounted on the main frame and capable of swinging the front board out of engagement with the main frame to permit the seat or body portion to be inverted.

4. In a sofa-bed having a main frame and a seat or body portion pivotally mounted thereon, a frame for the seat or body portion having a hinged board adapted to engage the main fram'e,a partition on the main frame,a lever mounted thereon, a hook carried by the lever extending through an opening in the partition, and an arm on the hinged board adapted to be engaged by the hook to swing the hinged board out of engagement with the main frame.

5. In a sofa-bed having a main frame and a seat or body portion pivotally mounted thereon, a frame for the seat or body portion having a hinged board adapted to en age the main frame, a partition on the main rame, a lever mounted thereon, a hook carried by the lever and extending through an o ening in the partition, an arm on the hinge board, a

lug on the arm adapted to be engaged by the hook to swing the hinged board out of engagement with the main frame, and a cam to receive the lug from the hook and hold. it extended so as to keep the hinged board in the position to which it is swung by the lever until it is clear of the main frame.

6. In a sofa-bed having a main frame and a seat or body portion pivotally mounted thereon, a frame for the seat or body portion having a hinged board adapted to engage the main frame, a partition on the main frame, a lever mounted thereon, a hook carried by the lever and extending through an o ening in the partition, an arm on the hinge board, a

lug on the arm adapted to be engaged b the hook, a cam to receive the lug from the hook and hold it extended so as to keep the hinged board in the position to which it is swung by the lever until it is clear of the main frame, and a second cam at the other side of the sofabed adapted'to engage and move the lug so as to cause the hinged board to clear the main frame.

7. In a sofa-bed having a main frame and a seat or body portion pivotally mounted thereon, a catch-plate pivotally mounted in the main frame and adapted to engage the seat or body portion, an arm projecting from the catch-plate, a suitably-mounted lever, and a lug on the lever adapted to engage the arm for retracting the-catch-plate from engagement with the seat or body portion.

8. In a sofa-bed having a main frame and a seat or body portion pivotally mounted thereon, a frame forthe seat or body portion having a hinged board adapted to engage the main frame, a partition on the main frame, a lever mounted thereon, a hook carried by the lever and extending through an opening in the partition, an arm on the hinged board, a lug on the arm adapted to be engaged by the hook to swing the hinged board out of en gagement with the main frame, a catch-plate pivotally mounted in the partition and having a rib adapted to engage a groove in the frame of the seat or body portion, an arm on the catch-plate extending through the partition, and a lug on the lever to engage the arm and withdraw the catch-plate from engagement with the seat or body portion.

9. In a sofa-bed having a main frame and a seat or body portion pivotally mounted thereon, a frame for the seat or body portion having a hinged board adapted to engage the main frame, a partition on the main frame, a lever mounted thereon, a hook carried by the lever and extending through an opening in the partition, an arm on the hinged board, a lug on the arm adapted to be engaged by the hook to swing the hinged board out of engagement with the main frame, a springpressed catch-plate pivotally mounted on the partition and adapted to engage the frame of the seat or body portion, an arm on the catchlate extending through the partition, and a ug on the lever adapted to engage the arm for withdrawing the catch-plate from engagement with the frame of the seat or body portion.

10. A sofa-bed having a main frame and a seat or body portion pivotally mounted thereon, a frame for the seat or body portion having a hinged board adapted to engage the main frame, a spring-pressed mattress-extension frame on the seat or-body portion having connection with the hinged board and adapted to hold said hinged board outwardly, and means for swinging the hinged board against the pressure of the extension-frame out of engagement with the main frame.

In testimony whereof we affix our signatures in presence of two witnesses.

GUSTAV E. HOLMES. AXEL G 'ABOSTROM. JOHN M. BOSTROM. Witnesses:

R. S. C. CALDWELL, C. T. BENEDICT. 

